ArticleProceedings. Biological sciences2018
Morphologically cryptic Amazonian bird species pairs exhibit strong postzygotic reproductive isolation.
Article in Proceedings. Biological sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed.
- Introgression across Narrow Contact Zones Shapes the Genomic Landscape of Phylogenetic Variation in an African Bird Clade.Systematic biology · 2025Article
- Genomic and Morphological Evidence Support Contemporary Three-Way Interspecific Hybridization in Ranid Frogs.Ecology and evolution · 2025Article
- Genomic Analysis Suggests That Mitonuclear Coevolution Proceeds Over Rapid Timescales in the Amazonian Pipra Manakin Complex.Molecular ecology · 2025Article
- triangulaR: an R package for identifying AIMs and building triangle plots using SNP data from hybrid zones.Heredity · 2025Article
- Secondary Sympatry as a Sorting Process.Ecology letters · 2025Review
- Genomic Architecture of the Clownfish Hybrid Amphiprion leucokranos.Genome biology and evolution · 2025Article
- Cryptic divergence in and evolutionary dynamics of endangered hybrid Picea brachytyla sensu stricto in the Qinghai-Tibet Plateau.BMC plant biology · 2024Article
- Cryptic Hybridization Dynamics in a Three-Way Hybrid Zone ofEcology and evolution · 2024Article
- The Ecology of Hybrid Incompatibilities.Cold Spring Harbor perspectives in biology · 2024Review
- Amazonian rivers are leaky barriers to gene flow in forest understory birds.Proceedings. Biological sciences · 2024Article
- Whole genomes show contrasting trends of population size changes and genomic diversity for an Amazonian endemic passerine over the late quaternary.Ecology and evolution · 2024Article
- Learning and memory in hybrid migratory songbirds: cognition as a reproductive isolating barrier across seasons.Scientific reports · 2023Article
- River network rearrangements promote speciation in lowland Amazonian birds.Science advances · 2022Article
- Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds.Proceedings. Biological sciences · 2022Article
- Seasonal migration patterns and the maintenance of evolutionary diversity in a cryptic bird radiation.Molecular ecology · 2022Article
- The dynamics of introgression across an avian radiation.Evolution letters · 2021Article
- Clinal genomic analysis reveals strong reproductive isolation across a steep habitat transition in stickleback fish.Nature communications · 2021Article
- Strong yet incomplete reproductive isolation inEcology and evolution · 2021Article
- Extensive historical and contemporary hybridization suggests premating isolation inEcology and evolution · 2021Article
- Analysis of multiple chromosomal rearrangements in the genome of Willisornis vidua using BAC-FISH and chromosome painting on a supposed conserved karyotype.BMC ecology and evolution · 2021Article
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3 authors.
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Abstract
We possess limited understanding of how speciation unfolds in the most species-rich region of the planet-the Amazon basin. Hybrid zones provide valuable information on the evolution of reproductive isolation, but few studies of Amazonian vertebrate hybrid zones have rigorously examined the genome-wide underpinnings of reproductive isolation. We used genome-wide genetic datasets to show that two deeply diverged, but morphologically cryptic sister species of forest understorey birds show little evidence for prezygotic reproductive isolation, but substantial postzygotic isolation. Patterns of heterozygosity and hybrid index revealed that hybrid classes with heavily recombined genomes are rare and closely match simulations with high levels of selection against hybrids. Genomic and geographical clines exhibit a remarkable similarity across loci in cline centres, and have exceptionally narrow cline widths, suggesting that postzygotic isolation is driven by genetic incompatibilities at many loci, rather than a few loci of strong effect. We propose Amazonian understorey forest birds speciate slowly via gradual accumulation of postzygotic genetic incompatibilities, with prezygotic barriers playing a less important role. Our results suggest old, cryptic Amazonian taxa classified as subspecies could have substantial postzygotic isolation deserving species recognition and that species richness is likely to be substantially underestimated in Amazonia.
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